The U.S. Army Corps of Engineers predicts that the water levels in the five Great Lakes will drop until April. How low are ...

They hold about 6 quadrillion gallons of water, or enough to blanket the entire U.S. to a depth of ... Below is a chart that shows the average date of first ice on the Great Lakes.

Photo courtesy of Matt Zuro. Image from NWS webpage. The Laurentian Great Lakes, as the world's largest unfrozen surface freshwater system, hold paramount significance in maintaining the ecological ...